Where does “旧姓” come from?

旧姓 (Japanese) comes from Japanese 旧, from Japanese 人, from Proto-Japonic *pitə — one.

旧姓 (Japanese): a "former family name"

Definitions

  1. a "former family name"

Ancestry of “旧姓”, step by step

旧姓 traces back through two separate lines of ancestry.

via Japanese 旧

StepLanguageWordMeaning
1Japanese旧old things, original state, former state, old...
2Japanese人a person, human; an individual; mankind, people
3Proto-Japonic*pitəone

via Japanese 姓

StepLanguageWordMeaning
1Japanese姓a clan; a kind of hereditary title bestowed to...
2Late Middle Chinese姓—
Every word from Proto-Japonic *pitə →Every word from Japanese 人 →Every word from Japanese 旧 →